Question: If Jóhan is the first name equivalent of Jack Blackman; what is the last name equivalent?
Paraphrase: In case Jóhan is the primary title identical of Jack Blackman; what is the final title equivalent?
SPARQL (Wikidata): SELECT ?answer WHERE { wd:Q3157130 wdt:P735 ?answer . ?answer wdt:P460 wd:Q23821304}
Answer: Jack, John